/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.qpid.server.protocol.v0_8;
import org.apache.log4j.Logger;
import org.apache.qpid.AMQException;
import org.apache.qpid.server.consumer.ConsumerImpl;
import org.apache.qpid.server.message.MessageInstance;
import java.util.Map;
public class ExtractResendAndRequeue implements UnacknowledgedMessageMap.Visitor
{
private static final Logger _log = Logger.getLogger(ExtractResendAndRequeue.class);
private final Map<Long, MessageInstance> _msgToRequeue;
private final Map<Long, MessageInstance> _msgToResend;
private final UnacknowledgedMessageMap _unacknowledgedMessageMap;
public ExtractResendAndRequeue(UnacknowledgedMessageMap unacknowledgedMessageMap,
Map<Long, MessageInstance> msgToRequeue,
Map<Long, MessageInstance> msgToResend)
{
_unacknowledgedMessageMap = unacknowledgedMessageMap;
_msgToRequeue = msgToRequeue;
_msgToResend = msgToResend;
}
public boolean callback(final long deliveryTag, MessageInstance message) throws AMQException
{
message.setRedelivered();
final ConsumerImpl consumer = message.getDeliveredConsumer();
if (consumer != null)
{
// Consumer exists
if (!consumer.isClosed())
{
_msgToResend.put(deliveryTag, message);
}
else // consumer has gone
{
_msgToRequeue.put(deliveryTag, message);
}
}
else
{
_log.info("No DeadLetter Queue and requeue not requested so dropping message:" + message);
}
// false means continue processing
return false;
}
public void visitComplete()
{
_unacknowledgedMessageMap.clear();
}
}